Its under intake but it is prob. the oxygen sincere had the same code come up it was the ox.sen.
how do you change the knock sensor in a 2003 Chevy silverado 5.3
how do I disconnect the Electrical connection on knock sensor
under the intake manifold
under the dome
I found in a google search 15ftlbs torque for the knock sensor.
how to replace a knock sensor on a 2000 Chevy 6.0 step by step
you have to pull off the intake they are under there. you have two you might as well replace both
$300.00
Under the intake manifold there are 2 knock sensors
NO.
Under the intake manifold.
The knock sensor is located on top of the block in a 4.8 2002 engine. The intake will have to be removed to get to the sensor.